#VU74478 Improper access control in Webpack - CVE-2023-28154

Vulnerability identifier: #VU74478

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-28154

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Webpack
Web applications / JS libraries

Vendor: webpack-contrib

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions on cross-realm objects in ImportParserPlugin.js. A remote attacker who controls a property of an untrusted object can obtain access to the real global object.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Webpack: 5.0.0 - 5.75.0

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External links
https://github.com/webpack/webpack/compare/v5.75.0...v5.76.0
https://github.com/webpack/webpack/pull/16500

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.